Restart, holding down CMD+R, select Disk Utility, wipe the HD, and install the OS. BTW, that action will require that you reset EVERYTHING on your new machine and reinstall all of your 3rd-party software. IMO, that's a waste of time. What you have now acts like the original and retains all of your settings and apps. Details in http://www.apple.com/macosx/recovery/ and http://support.apple.com/kb/HT4718
thanks for that, what my thinking was is all my apps and other stuff that ive been installing and uninstalling on my old imac over the last 2yrs may have left files that are cluttering and slowing my mac down and with me transferring these over to my new mac, my new mac may start running slowly more quickly if that makes sense.
i just thought if i do a fresh install then reinstall my apps and stuff it mat be better for my new mac in the long run?
i do regulary run clean my mac and lion cache cleaner, is there a better maintenance app on the market?
All I can say is that my current installations all came from OS 9 and Jaguar. I've not attempted to clean them the past eleven years and have beta-tested every cat from Panther on, so cleaning, as a routine is a waste of time. What I do is follow the advice in these linked articles:
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
Macintosh OS X Routine Maintenance,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths, and
Myths of required versus not required maintenance for Mac OS X